CVE-2026-28338
MEDIUM
GHSA-8rr6-2qw5-pc7r
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Lifecycle Timeline
4Description
PMD is an extensible multilanguage static code analyzer. Prior to version 7.22.0, PMD's `vbhtml` and `yahtml` report formats insert rule violation messages into HTML output without escaping. When PMD analyzes untrusted source code containing crafted string literals, the generated HTML report contains executable JavaScript that runs when opened in a browser. Practical impact is limited because `vbhtml` and `yahtml` are legacy formats rarely used in practice. The default `html` format is properly escaped and not affected. Version 7.22.0 contains a fix for the issue.
Analysis
Cross-site scripting (XSS) in PMD's legacy vbhtml and yahtml report formats allows arbitrary JavaScript execution when HTML reports are opened in a browser, triggered by analyzing malicious source code containing crafted string literals. Public exploit code exists for this vulnerability affecting PMD versions prior to 7.22.0. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.
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External POC / Exploit Code
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